• Fixed errors when Fishing or using Shake ability
• Significant optimizations made to reading new chunks for mcMMO
• Significant optimizations to most block interactions in mcMMO code
• Fixed a horrendous edge case where Tree Feller could cause a lot of lag

Notes:
Part of this update focused on optimization, there's improvements of around 30% in CPU time for most code involving block interactions in mcMMO, which happens to be most code in mcMMO.
One of the optimizations made in this update removes an edge case where Tree Feller could cause a lot of lag, but the optimizations really are across the board in regards to any abilities that interact with blocks.